Automatic machine for molding glass articles.



A. WILZlN. AUTOMATlC MACHINE FOR momma GLASS ARTICLES,

APPLICATION FILED MAR. 22, 1912.

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A. WELZEN. AUTOMATIC MAGNET-1E WRMOLDING GLASJARTICLES, APPLICATION FILED m. 22, m2.

, 1 f; 0 Patented Dec, 25,- 1917.

7 SHEETS-SHEET 2.

A. WiLZHL AUTONMBQ' MACHENE FOR NOLDINE GLASS ARTICLES.

APPLICATION FILED MAR. 22, E912,

Patented; M0. 25, 191?.

7 SHEETS-SHEET 3.

A. WILZIN.

AUTOMATIC MACHINE FOR MOLDING GLASS ABHCLES.

APFLICATlON FILED MAR. 22, 1912.

Patentad Bee. 25 1912.

7 SHEETS-SHEET 5.

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AUYOMATH) MACHHJE FOR MOLDLNG GLASS ARTICLES.

APPLICKP'lON FILED MAR. 22, 1912.

Patented Dan. 25,1917. 7 SHEETS SHEET 7.

Z CV ifffntor:

Witnesses:

or su-o'onn", reason.

AUTQTMEXGjvIACHIETE FOE EH31. EH13: GLASS ARTICLES.

specification of metta-rsfetent. FPatentedl Hen. 25, 1&1 "Z.

To all whom it may concern Be it known that l, 'iiirnzrn, oi 100 Boulevard Victor Hugo, StrCfuen, Seine, Republic of liranceenginee have invented 5 Automatic n-loldii'ig Glass Machines for Articles, ofcvhich the following is-a i'ull, clear, and exact description.

In machi-..es of class, it is to treat the differently accordance with the chemical composition of the and of its other ingredients, in accordance with the heat of the furnace and according to the size and shape or? the article tobe produced. The degree of malleability, the tendency to .set

more or less quickly, or to remain malleable for a long time, and the conditions arising from differences in the hull: of the glass 0peratecl on, render it necessary to vary largely the periods contact with th molds and the duration of the blowing operations.

.Tlaeprimary object of this invention to provide mechanism adapted to meet the varying conditions. above mentioned, and

this I accomplish, in. the specific form of my invention herein shown and described, by employing instead of the heretofore known mechanism including actuating cams for efiecting certain operations such, for ex ample, as opening and closing of the molds,

transference of the parison, etc, and which time by their dwells the duration of the glass Working periods, mechanism wherein cams which actuate such parts are themselves stopped in their rotation during the cycle,

of manufacture, and restarted, andhy such stoppages and starting control the timing of the glass working periods, the restarting of these. cams and the duration of their stop- I page periods in a cycle being determined by a controllm device moved b a continuous motion through a cycle and at a rate corresponding to that of the cycle, and carrying cams or contacts which act upon clutches adapted to establish and interrupt connections between said actuating cams and a source of power, and adjustable to vary the timesof the actuation of said clutches and thereby vary the starting points and stoppage periods or" said acuating cams.

In this manner, it becomes possible to construct the actuating cams of small diameters and, consequently, much less expcnsively and m" more convenient shape for placing before the furnace, and to vary the duration or" the glass working periods to suit diiier- 'ent compositions and heats of glass and accompanying claims.

ferent Weights and shapes of the articles to he produced. I

The ordinary cheap glass compositions, as used with 'hand actuated machines, become avai-liible under these conditions.

Qther' objects of my said invention will more fully appear from the following detailed description, and the novel'features' will he more particularly pointed out in the n order to more fully describe my inventicn, reference will now he had to the accompanying drawings whereini Figure 1', shows in elevation -a molding machine embodying one specific form of my invention;

Fig. 2, a. plan view,

3, anpnd view of said machine; Figs. ii, 6, 6*, and 7, detail views thereof, and

Fig. 8, shows the application of an automatic glass purveying or gathering device to this machine.-

Figs. 9 and 10 illustrate in front view and plan'vieii respectively the tap'hole of this glass purveying device. Fig, 11 shoivs'a pneumatically operated device for the bottom of the finishing mold. Figs. -12, liland 14 illustrate the various positions of the bottom in connection with this pneumatic device.

Figs. 15 to 18 illustrate the controlling and driving machine controlling the various movements of theectuating machine.

Fig. 15 is an elevation of this driving machine. x

Fig. 16 is a plan, view and Figjli' is an end elevation of the driving machine.

Fig. 18 is an elevation showing the controlling device used in connection with the driving machine.

Fig. 19 shows the application of the invention to a plant comprising'several mai chines which are all actuated by one and the same driving machine.

The molding machine (Figs. 1, 2, 3) comprises a parison mold a, a ring mold b and a finishing mold 0 and the molding carrying devices. I

The measuring or parison mold (1 serves for the reception of the quantity of melted glass necessary for the manufacture of an article and to roughly prepare the article. This mold is in tituted by two similar parts l c The opening by 9 Below the tap hole is nasnice or it may be automaticallysuppliedby a device of the type illustratec inlhig 8.

Zln this device. the furnacejproi'ided with the usual partit' glass to passthrough the orifice 0 into the collecting chamber and to the outlet. 0 proggided in same. This outlet can be closed by means of an obturator 0 adapted to slide no and down on the inside wall of the fur- T his obturator is raised or lowered b means of a lever m and of a rod m actuated by arm m mounted on the shaft 6 size of the opening through which he glass passes, is regulated by causing the stroke the ohturator 0 to vary. This result is obtained by means of a hand wheel m attached to a threaded sleeve m which is fitted to the insideof a cylinder m lVhen the arm m oscillates in the direction ind" ated by the arrow 1, the first portion 19, stroke is idle to the extent of the lost motion (1. During this time, the

rod hi remains stationary. -When thcsleeye 1c piston 722.? connected m strikes noon with the rod the latter is displaced and the obturator 0 is raised. By reducing the lost. motion {file}, the lift or the obturator ncreased; by increasing d it is reduced. l the end of the stroire of m, a spring d prevents such shock as would lie liable to injure the tap hole stone or the obturat-or. orifice 0 opens out into a channel (Figsfi, 9 and 10) formed in a stone block which may be easily removed. Opposite to this channel, a blowpipe :8 may be placed.

uni-ed a pair of ;shears m (Fig. 2); these shears are actuated-lay connecting rods m and levers m the mo cuts of which are derived from two pin, .is m" one of which is actuated by a rod n opcra-ted by the driving machine illdstrated in Figs. 15, 16; 17, 18 and described hereafter. J

The operation of the above described molding machine can be briefly described as follows:

duss befo re glass is to flow into them, the measuring and ring molds are'stopped in the p a on represented in Fig. 1; the .cover is open the tw'd molds are closed, the in 'terior being in communication with the vacuum he intcrn'iediary-of the cock is.

I At this men'r, the shears m are open.

F poured into the measuring mold and the r,- mold complete; lls them under the iniiuencc of the vacuum.

Atrthe moment at which a suficient quantity of glass has fallen into the parison mold the rod '11 is displaced and closes the shears m which sever the thread of glass.

The parison mold being thuls filled with glass the rod 1 2.- is displaced and the rack g inverts ihe'parison mold (1 around the axis Q31 As soon as this movement comrae'ncs the cover 3' closes under the influence allowing the refined of its springs j. At the same time the pinion 7 running on the toothed ring 7 causes the rotation of the train of gear Wheels F the withdrawal of the punch f.

While the parison mold is being reversed the finishing mold 0 opens under the influence of the shaft e the bottom 5 is lowered by the shaft 6* and rocks, as shown in 3 so that the previously finished bottle which had hithcrtoremained in the'finisl ing mold is overturned and discharged into a chute p The shaft 6 causes the cock is to open and places the conduit 7:: in communication with the compressed air supply; the blowing of the parison may commence as soon as the parisonhas reached the lowest. position or slightly before and may continue for a certain time. i

Theshaft 6 turns and stops the blowing; the shafts e c? then turn in causing the parison mold to open, the finishing mold to close and the bottom of the finishing mold V to ascend against the bottom of the parison.

The shaft 6 again opens the compressed air supply and the blowing of the bottle in the finishing mold takes place.

The shaft 0 is then actuated and opens the ring mold whereupon the rack 9 reverses the parison and ring molds which return to. the position represented in Fig. 1. The blown bottle remains in the finishing mold.

A cycle has then been accomplished and the same operations we repeated indefv nitely one article being manufactured during each cycle.

As has been seen the ring mold is disengaged from the bottle as soon as 'the blowing is finished, leaving the bottle in the finishing mold. This arrangement permits of leaving the bottle much longer in this finishing mold after it has been blown with I the object of cooling it sufiiciently to periwit of dispensing with cooling pots and his without increasing the duratlon of the cycle as in other automatic machines, for.

gathering aperture, throughout'the entire duration of the gathering during the shearing; and .durmgv a large part of the .return movement of the parison mold toward the finishing mold. In other words during about three-fourths of the entire cycle,1the bottle is contained in the finishing mold, and only leaves this mold at t-heinomenr, of its ejection into the inclined chute which conducis it to the annealing furnace, just prior to the arrival of the measuring mold."

In this manner the period of cooling after blowing is not added to the duration of the cycle as 1n other methods of manufacture,

zjy 3,251,156

"irised therein so that the number nanutactured per minute may be to 30% greater than with other a1 .oma c machir in this manner a Considerabie increase in the speed of manufacis obtained While avoiding the deiormation of the bottles which is produced it they the machine while still too malleable. act of the ring mold with the ceas immediately after the blowing, the body of the bottle then remaining ined in the finishing mold; this method of lure serves to diminish the excessive cooling of "he neck relatively to the b( y n rich in fllll-G-St all other methods of manuare produces WnStQl'S or necessitates the ig the neck before the bottles are 7 .l he arch. case I the gathering being effected tomatically as illustrated in Fig. 8, the coturator 0 rises and uncovers to a greater or lesser ardent the tap hole as soon as the has reached the filling posiihe flows out and. during the time it pass s in the channel 0 is heated by the flame of the blow pipe which prevents its temperature from lowering unduly. The glass therefore reaches the parison mold in hot state. When the requisite quanglass has been drawn oft, the obturacloses the orifice 03 and the shears m ai'idcut off the thread of glass which gathering a scraper pass L to remove particles of git: s which might gcment ofthe tap hole shown the advantage of allowing of n? cleaning and repairing and of permit;

mg any of the pans of the machine. 11 to 1% illustrate a pneumatically .d device for the bottom 2' of the finishing mold.

device has for its purpose to prevent perforating the parison during the blowopera titn. which would happen when the parison bottom is not maintained by ottom mold thus permitting of the com- ."ed air to pass through. no bottom carried by a. piston working in a cylinder g mounted on the slide 1' (Fig. 12; the latter is actuated by a connecting rod 2' and a lever i mounted the shaft 6' similar in that respect to what is shown in Fig. 1.

resistance to use a olcvvpipe. Without risk of The bottom of the cylinder is provided through cock 3/ this drum and control the shafts e e a The valve box 3/ and the butt-screw are in reality placed at 90 from the position in which they are shown in Fig. 11 for the sake oi more convenient illustration.

The devices operate as follows:

Supposing the cylinder 9 to be in its lowest position (Fig. 12) in this position the tail of the valve 3 touches the butt-screw so that this valve is opened and the compressed air arrived under the piston 3/ by inlet a The cock is kept sufiiciently closed to oiler to the escape of the compressed air, enough maintain the piston raised, as illustrated in Fig. 12.

hen the parison mold opens, it leaves the parison suspended by the ring mold over the bottom 91 as shown in Fig. 12. At this moment, the shaft 6 turns through a certain angle, raises the slide 2", and with it, the cylinder y, the piston 3/ and bottom 2', which latter presses against the parison, as shown in Fig. 13.

The raising movement of the cylinder 3 has interrupted the contact between the buttscrew 2 and the tail of the valve 31, allowing the valve to close and thereby cutting off the compressed air. The compressed air contained in the cylinder maintains the piston in its upper position, by reason of the resetance this air encounters in passing through the passage of the cook 7,

The finishing mold c then closes around the parison thus elastically supported at its lower end, and the blowing in the mold commences.

The downward pressure produced by the blowing drives the bottom 2' downward Fig. 1%) the speed on this downward movement can be regulated by opening the cock 3 to a greater or less extent.

lhe blowing then stops and the manu-- facture of the article is terminated. The shaft 6 rotates in the reverse direction and lowers the cylinder 1 which brings it back to the initial position.

The motor group will it comprises three series to 18).

(a) A series or cams sired movements to the e and to the-rod il (5) Another series of cams controlling the rod n of the shearing mechanism and the shaft 6 of the said mechanism.

(a) A special part, termed the control Wheel, which determines the times and durations of the glass Working operations relatively to the mechanical phases.

The cams of the first series which impart movement to the shafts e e e e e and to the rod h, are united upon a drum 9.. Grooves g g? g g and g are formed on e by means oflevers 9 9 9 9 9 and of corresponding now be described; of parts (Figs.

imparting the deshafts e e e 6- connecting" rode a, c

nannies ef e 5 6 a groove g formed on the periphery, serves to produce the movements of the rod 72, (Fig. 16). I

The drum 9 comprises" teeth 1" meshing with a pinion v lhis pinion is driven by a driving pulley 1' by the intermediary of a train of gearing comprising pinions r r r "r r 7 which may include a change of speed gear and a clutch 1 The latter is arranged in the known manner, so as to accomplish a complete revolution exactly when the lever 7' is acted upon and to be declutched automatically as soon as the revolution is complete. It the action upon the lever r is continued, however, the clutch remains engaged until the lever r is released and a number of complete revolutions can take place.

The cams of the second series, controlling the tapping and shearing-are formed upon a drum 8 and act respectively by the intermediary of levers and connecting rods on the rod n and the shaft 6. The drum .9 receives its movement from the driving pulley r by the intermediary or" a belt a (Fig. l6), of gear wheels and of a clutch 8 controlled by lever 8 and similar to the clutch r,

The tapping and gatheringoperations comprise three phases always consecutive; said phases are produced by three successive central operations upon the lever 8 the ratio between the clutch and the drum 8 is as 3 to 1, so that, when this clutch effects a revolution, the drum 5 makes one third of a turn; consequently, when the lever 3 is acted upon for the first time, the drum is given its first third of a turn, thereby producing the first phase (opening of the ob turator 0) a second operation produces a second third of a turn which determines the closing of the ohturatc-r 0; finally a third action terminates the complete turn of the drum and thus efiects the third phase which is the shearing or the glass.

Finally the motor system comprises the control wheel 5 which automatically .controls the levers 7 8 On its periphery this wheel is provided with teeth driven by pinions t r r 16) comprising, if desired, a change speed gear.

There is a constant ratio between the speed of the control wheel a and that of the two cam drums?" and ,5, as these three elements receive their movement from the same pulley r The speed of the control Wheel is such that the time required for the manufacture of an article comprising the entire cycle of operations, correspondsto a revolution of this Wheel.

The control wheel comprises two grooves and in which three dogs a a and a and three. hlochs o o a can he displaced ugon' the .Wheel.

mi ash for the purpose of varying their positions When the best positions for the dogs and block have been ascertained for treating a glass of given quality in predetermined conditions, it is obvious 'that these dogs and blocks need not be made adjustahle when constructing other machines intended for working glass of the same kind, in the same conditions. These dogs and blocks are arranged in two diiierent .planes and the dogs are intended to act upon the lever 8 and the blocks upon the lever a, and consequently unon the corresponding clutches.

The motor gro pcomprising the two se ries of cams and the control wheel, drive any desired number of molding machines.

Fig. 19 shows a certain number oi these. machines. The shafts c e the rod n and the shaft 6* are continuedior a suitable distance left and right of the motor "group and pass through the molding machines to which they impart the necessary movements.

Now considering the motor group and a molding machine as a Whole, the operation is as follows:

Assuming the control wheel to occupy the oosition illustrated in Fig. 18, which corresponds to the gathering, and moving in the direction indicated hy the arrow", liig. 18. The dog ct having already determined the opening of the obturator and consequently the flow of a certain quantity of glass, the dog of passes over the lever 8 thus throw ing in the clutch e and producing a rotation of one third of a revolution of the drum .2

thus bringing about the second phase of.

the gathering, consisting in the closingoi' the ohturator 0 The melted glass has nowfilled the parison mold surely filling it tothe lowest point of the ring mold owing to its being in communication with the vacuum ump by means of the cock 7th The dog ee passing in its turn opposite the'lever 8 again throwing in clutch s and producing a fresh rotation of tlre drum 8 through one third a revolution causes tie shears to act.

As control the hlocl: o {inv *sion} acts unon the lover: a, which causes the engagement oi r and the rotation of the ninion of which continues during the whole time that the hloolr '0 is in contact with the lever r. The pinion r thus acorn pllSllQS an exact numher or" revolutions which so respond to the rotation of the drum 2 through an exactly nod amplitude.

.tion the r. produces the :tollov The parison mold filled with its glass is invertedand assumes -osition at angle at 180 to that repress} 'n Fig.1: 'lirom cover j closes; the punch gr movement the disengaged v eel continues to rotate,

let 7 incense p corresponding to the commencement of said glass Working periods and restarting the rotation of said cams after periods corresponding respectively to the duration of said glas Working periods, the sum otthe times or" said stoppage and rotating periods correspondino to the total time cycle of the machine-"and said starting and stopping means being adjustable to vary the duration 19 of said glas working periods.

in a machine for the manufacture of glass articles, the combination with a plurality of glass-manipulating elements, of a plurality of intermittently actuated cams, means to transmit motion from said cams to the glass manipulating elements, a source of energy and a clutch to connect and disconnect said source of energy to said intermittently actuated cams, and controlling means Cit 20 for said clutch comprising a continuously rotating member and a plurality of clutch actuating elements carried by said rotating member. 5. In a machine for the manufacture of 5 glass articles, the combination With a pinality of glass manipulating elements, of an inteunittently actuated. drive shafg, means to transmit motion from the drive shaftto the glass manipulating elements comprising so a plurality of cams lin d in synchronous relation to said shaft, :1. source of energy and a clutch to connect and lisconncct said source or energy to the drive shaft, and controlling .s for said clutch comprising a control ling member continuously rotating at a uniform rate of speed corresponding to the time cycle of the machine, and clutch actuating elements adju'stahly mounted on said controlling member.

machine for manufacturing glass objects, having niovahle molds and carriers therefor, a control device adapted to determine stop- 'iods of molds ard mold carwhich the glass rlzing opercc, for i* r in an automatic kinematicallv actuated (.clHlSv COH- C said molds, and

said rotary member, said control device including control contacts carried thereby and acting upon said starting, stopping and restarting mechanism of the rotary member to control the movements of the molds.

7. In a machine for manufacturing glass articles, the combination with glass Working and glass handling elements, of revolving cams adapted to actuate said elements, means for controlling the rotation of said cams and comprising a control device having an independent motion corresponding to the cycle of manufacture apd contact pieces carried by said control device, a rotary clutch acted upon by said contact pieces for establishing and interrupting the rotary movement of the above cams, a continuously revolving shaft associated with said clutch, and means for assuring that the clutching and dcclutching action Will always take place at the same point of the revolution of the clutch.

S. in a machine for manufacturing glass articles a plurality of Working and handling devices, means for actuating said devices in proper succession, said means incl uding a revolving multiple cam, and a control device having an independent movement corresponding to the cycle of manufacture and provided ith adjustable contact pieces whereby the movement of the multiple cam started and stopped.

3. in a machine for n'iaiuii'acturing glass articles a plurality of glass working and handling devices, means for actuating said 'uQ-VlCQS in proper soc :ssion, said means ineludinga revolvingmultiple cam, a continuou'sly revolving control device, said control device making one revolution per cycle of manufacture, contact piece carried by said device,'and a clutch device actuated by said contact pieces to intermittently start and stop cam.

l"he foregoing; sj icciiioation of my autonia ic machine for molding glass articles by me this eleventh day of. llilaroh 

